Self-heated soldering-iron



H. SILVER.

SELF HEATED SOLDERING IRON.

APPLICATION FILED MAY 6. 1919.

1,345,41 1 atent d u y 6, 1920.

Wit/701R By WZWY/ ATTORNEY UNITED STATESPATENFTI OFFICE.

HYMAN SILVER, OF NEW YORK, N. Y.

' SELF-HEATED SOLDERlING-IRON.

Application filed May 6, 1919. Serial No. 295,182.

To all whom, it may concern:

Be it known that I, HYMAN SILVER, a citizen of the United States, and resident of the borough of Manhattan, county, city,

and State of New York, haveinvented'certain new and useful Improvements in Self- Heated Soldering-Irons, of which the following is a specification.

This invention relates to improvements in soldering irons and has for its principal. objects to provide a device in which a combustion chamber is provided in a head which is provided with the usual point and may be formed of copper or any other suitable heat coi'ulucting material.

Another object of the invention resides in the provision of an iron into which a mixture of air and gas is admitted through the handle, the combustion of which mixture is augmented by a further supply of air which is admitted ust prior to the entrance of the mixture into the combustion chamber.

A further object of the invention is to provide an outlet for the hot gases and the products of combustion.

The following is what I consider a good means of carrying out this invention and the accompanying drawings should be re ferred to for a complete understanding of the specification which follows.

In the drawings Figure 1, is a side view in elevation of a soldering iron constructed in accordance with this invention and illustrating the gas and air conducting tube attached thereto.

Fig. 2, is an enlarged detail View of Fig. 1, illustrating portions thereof in section to more clearly illustrate the details of construction.

Fig. 3, is a transverse sectional view through Fig. 2 on line 8-3 thereof and looking in the direction of the arrows, and

Fig. 4, is a View similar to Fig. 3 but looking in the opposite direction.

Similar reference numerals indicate like parts in all of the figures where they appear.

Referring to the drawings in detail, the numeral 1 designates the handle of the iron having extending therethrough an externally threaded pipe 2. One end of this pipe is provided with a socket 3 to which the air and gas feeding pipe 4 is connected. It will be understood that this pipe 4 may be formed of any suitable material but is pref- Specification of Letters Patent. Patented July 6, 1920.

erably flexible. A fitting5 is attached to the end of the pipe 4 opposite that which is connected to the-socket 3 and this fitting is provided with the main inlet 6 through which the gas is admitted and a branch 7 through which air is admitted.

As shown in thedrawings the pipe 2 projects beyond'the forward end of the handle 1 and threaded on this extension is a shield S which is funnel shaped as illustrated, and having a relatively large central perforation 10, the use of which will be more fully hereinafter described.

'Formed' integral with the shield 8 is a burner tube 12 having formed in its periphery, a plurality of longitudinal flutes 13, the use of which will appear as the description proceeds.

Each of these flutes is provided near the shield with an auxiliary air inlet opening 11 all of which openings are adapted to furnish additional oxygen to the mixture passing through the burner tube.

The head of the iron is designated by the numeral. 1.4 and comprises a cylindrical body having the usual. pointed end 15. A bore 16 is formed in the head at the end. oppositethe point 15 and is adapted to receive the forward end of the burner tube 12 which is held in place by correlated screwthreads. A transverse opening 17 extends through the head 14 near the inner end of the bore 16 and through this opening the flame may be observed for the purpose of obtaining proper regulation, as "clearly shown in. Fig. 2.

In operation gas is admitted to the device through the branch 6 and air through the branch 7. The mixture of gas and air then passes through the pipe 4 and into pipe 2, blowing through the shield 8 and entering the burner tube 12. The passage of the gas through the burner tube will draw in an additional supply of air through openings 11. which insures complete combustion in the combustion chamber formed by the bore 16. The gas is initially ignited at the rear end of the head 14 but the flame will be impelled by the air and in a thin finger against the inner wall of the copper. Thus direct heat is applied to the head and the spent gases or of combustion will pass outward and away through the flutes 13. It will be appreciated that the flame and. heat therefrom is concentrated directly upon the copper head and when the flame is properly products and regulated complete combustion takes place within the chamber 16, no flame appearing upon'the outside of the head. The opening 17 may serve to further supply air for the support of combustion.

Other modifications may be made within the scope of the appended claim without departing from the principle or sacrificing the advantages of the invention. Obviously the size and design of my device may be changed atwill. V

hat I claim is A self heating soldering iron including a Y head having a longitudinally extending bore in one end forming a combustion chamber, a burner tube having one end inserted into the bore for a predetermined distance, said burner tubehaving an annular series of spaced longitudinal flutes in its periphery to permit the escape of consumed gases from 20 the combustion chamber, each flute having a relatively small opening in its bottom Wall adjacent the shield through which an auxiliary supply of air is introduced intovthe fuel just prior to its combustion, a shield 25' and State of New York, this 23rd day of April, 1919.

' HYMAN' 'sILv'E 

